101212112121200 has 30 divisors (see below), whose sum is σ = 243162099372144. Its totient is φ = 40484844848320.

The previous prime is 101212112121193. The next prime is 101212112121217. The reversal of 101212112121200 is 2121211212101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126515139752 + ... + 126515140551.

Almost surely, 2^{101212112121200} is an apocalyptic number.

101212112121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212112121200 is an abundant number, since it is smaller than the sum of its proper divisors (141949987250944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101212112121200 is a wasteful number, since it uses less digits than its factorization.

101212112121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253030280321 (or 253030280310 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101212112121200 its reverse (2121211212101), we get a palindrome (103333323333301).

Subtracting from 101212112121200 its reverse (2121211212101), we obtain a palindrome (99090900909099).

The spelling of 101212112121200 in words is "one hundred one trillion, two hundred twelve billion, one hundred twelve million, one hundred twenty-one thousand, two hundred".